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Martin Sion
Chief Executive Officer at
ALSTOM
Profile
Martin Sion is currently Chief Executive Officer at Alstom SA since 2026, Chief Executive Officer at ArianeGroup SAS since 2020, Chairman at Safran Electronics & Defense SAS since 2023, and Director at ArianeGroup Holding SAS since 2020.
Formerly, Mr. Sion was Chief Executive Officer at ArianeGroup GmbH from 2023 to 2026, Head of the Space Engines Division at SNECMA SA, and Chief Engineer at Société Européenne de Propulsion.
Education includes an undergraduate degree from École Centrale Paris, conferred in 1990.
Latest news about Martin Sion
Martin Sion active positions
| Companies | Position | Start |
|---|---|---|
| ALSTOM | Chief Executive Officer | 31/03/2026 |
Safran Electronics & Defense SAS
 Safran Electronics & Defense SAS Aerospace & DefenseElectronic Technology Manufactures optronic, avionics and electronics products for civil, military and space markets | Chairman | 16/06/2015 |
ArianeGroup Holding SAS
 ArianeGroup Holding SAS Financial ConglomeratesFinance Functions as an investment holding company | Director/Board Member | 26/05/2020 |
ArianeGroup SAS
 ArianeGroup SAS Aerospace & DefenseElectronic Technology Designs launch systems that offers civil and military space solutions for institutional, commercial & industrial customers | Chief Executive Officer | 11/04/2023 |
Former positions of Martin Sion
| Companies | Position | End |
|---|---|---|
ArianeGroup GmbH
 ArianeGroup GmbH Aerospace & DefenseElectronic Technology Manufactures aircraft, defense and communication equipment | Chief Executive Officer | 31/03/2026 |
SNECMA SA
 SNECMA SA Aerospace & DefenseElectronic Technology Manufactures aircraft and rocket engines | Corporate Officer/Principal | - |
Société Européenne de Propulsion
 Société Européenne de Propulsion Aerospace & DefenseElectronic Technology Provides services and engineering related to turbines | Chief Tech/Sci/R&D Officer | - |
Training of Martin Sion
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
24
1st degree connections
8
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 8 |
|---|---|
Alstom SA
 Alstom SA Trucks/Construction/Farm MachineryProducer Manufacturing Manufactures equipment for transmission and distribution of electric power | Producer Manufacturing |
SNECMA SA
SNECMA SA Aerospace & DefenseElectronic Technology Manufactures aircraft and rocket engines | Electronic Technology |
Société Européenne de Propulsion
Société Européenne de Propulsion Aerospace & DefenseElectronic Technology Provides services and engineering related to turbines | Electronic Technology |
Safran Electronics & Defense SAS
Safran Electronics & Defense SAS Aerospace & DefenseElectronic Technology Manufactures optronic, avionics and electronics products for civil, military and space markets | Electronic Technology |
École Centrale Paris
 École Centrale Paris Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
ArianeGroup SAS
ArianeGroup SAS Aerospace & DefenseElectronic Technology Designs launch systems that offers civil and military space solutions for institutional, commercial & industrial customers | Electronic Technology |
ArianeGroup GmbH
ArianeGroup GmbH Aerospace & DefenseElectronic Technology Manufactures aircraft, defense and communication equipment | Electronic Technology |
ArianeGroup Holding SAS
ArianeGroup Holding SAS Financial ConglomeratesFinance Functions as an investment holding company | Finance |
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